535396 divided by 51 
The aim is to understand the frequency of 51 in 535396.

Moving on to step 1:
The number 51 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 51

Let's proceed to step 2:
If we divide 53 by 51, we get 1 and a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 51 from 53 and we're left with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 51

Advancing to step 3:
The number 51 fits into 25 0 times, leaving a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 25, we end up with 25.
Fetch the next digit (3) from the dividend, attach it to 25 and continue: 253 / 51

Moving on to step 4:
51 goes into 253 4 times with a remainder of 49.
Use 4 as the next digit of our solution. 
Result so far: 104.0
If we take 204 away from 253, we end up with 49.
Grab the next digit (9) from the dividend, add it to 49, then carry on: 499 / 51

On to step 5:
The number 51 fits into 499 9 times, leaving a remainder of 40.
Put 9 as the next digit of the answer. 
Result so far: 1049.0
Subtracting 459 from 499 leaves us with 40.
Fetch the next digit (6) from the dividend, attach it to 40 and continue: 406 / 51

Going ahead to step 6:
If we divide 406 by 51, we get 7 and a remainder of 49.
Use 7 as the next digit of our solution. 
Result so far: 10497.0
Subtracting 357 from 406 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 7:
The number 51 fits into 490 9 times, leaving a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 10497.9
The remainder is 31 after subtracting 459 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 8:
The number 51 fits into 310 6 times, leaving a remainder of 4.
The next digit of our result is 6. 
Result so far: 10497.96
Deduct 306 from 310 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
If we divide 40 by 51, we get 0 and a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 10497.96
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
When dividing 400 by 51, we get 7 with a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 10497.9607
Subtracting 357 from 400 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 11:
51 goes into 430 8 times with a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 10497.96078
Deduct 408 from 430 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 12:
When dividing 220 by 51, we get 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 10497.960784
The remainder is 16 after subtracting 204 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 13:
If we divide 160 by 51, we get 3 and a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 10497.9607843
If we subtract 153 from 160, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 14:
When dividing 70 by 51, we get 1 with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 10497.96078431
Subtract 51 from 70 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

After the division, we end up with 10497.96078431 and a remainder of 1.9e-08.